List of JRP papers

The 'SpinCal EXL04' Joint Research Project has produced so far:

  • 24 papers in peer-reviewed journals, among which:
  • 5 papers in journals with Impact Factor greater than 5

Publication single view

Title:

Optical spin-transfer-torque-driven domain-wall-motion in ferromagnetic semiconductor

Author(s): A. J. Ramsay, P. E. Roy, J. A. Haigh, R. M. Otxoa, A. C. Irvine, T. Janda, R. P. Campion, B. L. Gallagher and J. Wunderlich
Journal: Physical Review Letters
Year: 2015
Month: February
Day: 11
Volume: 114
Issue: 067202
DOI: 10.1103/PhysRevLett.114.067202
Abstract: We demonstrate optical manipulation of the position of a domain wall in a dilute magnetic semiconductor, GaMnAsP. Two main contributions are identified. First, photocarrier spin exerts a spin-transfer torque on the magnetization via the exchange interaction. The direction of the domain-wall motion can be controlled using the helicity of the laser. Second, the domain wall is attracted to the hot spot generated by the focused laser. Unlike magnetic-field-driven domain-wall depinning, these mechanisms directly drive domain-wall motion, providing an optical tweezerlike ability to position and locally probe domain walls.

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